#include <iostream>
#include <unistd.h>
#include <stdlib.h>

using namespace std;

int main(){

    //cout << "other pid:" <<getpid()<<endl;
    
  for(int i = 0; i < 5; i++){
   // cout << "other:"<<getpid()<<(getenv("MYENV")==NULL?"NULL":getenv("MYENV"))<<endl;
    cout << "-------------------------------------------------------------------------"<< endl;
    cout << "我是另一个程序，我的pid是: " << getpid() << endl;
    cout << " MYENV: " << (getenv("MYENV")==NULL?"NULL":getenv("MYENV")) << endl;
    cout << " PATH: " << (getenv("PATH")==NULL?"NULL":getenv("PATH")) << endl;
    cout << "-------------------------------------------------------------------------"<< endl;
      sleep(1);
  }
  return 0;
}
